#!/usr/bin/python from ABElectronics_ADCDACPi import ADCDACPi import time # ================================================ # ABElectronics ADCDAC Pi 2-Channel ADC, 2-Channel DAC | ADC Read Demo # Version 1.0 Created 17/05/2014 # # run with: python demo-adcread.py # ================================================ # this demo reads the voltage from channel 2 on the ADC inputs adcdac = ADCDACPi() # create an instance of ADCDACPi adcdac.setADCrefvoltage(3.3) # set the reference voltage. this should be set to the exact voltage measured on the raspberry pi 3.3V rail. while True: print adcdac.readADCvoltage(2) # read the voltage from channel 2 and display on the screen time.sleep(0.5)
#!/usr/bin/python from ABElectronics_ADCDACPi import ADCDACPi import time import math # ================================================ # ABElectronics ADCDAC Pi 2-Channel ADC, 2-Channel DAC | DAC sine wave generator demo # Version 1.0 Created 17/05/2014 # # run with: python demo-dacsinewave.py # ================================================ # this demo uses the setDACraw method to generate a sine wave from a predefined set of values adcdac = ADCDACPi() DACLookup_FullSine_12Bit = \ [ 2048, 2073, 2098, 2123, 2148, 2174, 2199, 2224, 2249, 2274, 2299, 2324, 2349, 2373, 2398, 2423, 2448, 2472, 2497, 2521, 2546, 2570, 2594, 2618, 2643, 2667, 2690, 2714, 2738, 2762, 2785, 2808, 2832, 2855, 2878, 2901, 2924, 2946, 2969, 2991, 3013, 3036, 3057, 3079, 3101, 3122, 3144, 3165, 3186, 3207, 3227, 3248, 3268, 3288, 3308, 3328, 3347, 3367, 3386, 3405, 3423, 3442, 3460, 3478, 3496, 3514, 3531, 3548, 3565, 3582, 3599, 3615, 3631, 3647, 3663, 3678, 3693, 3708, 3722, 3737, 3751, 3765, 3778, 3792, 3805, 3817, 3830, 3842, 3854, 3866, 3877, 3888, 3899, 3910, 3920, 3930, 3940, 3950, 3959, 3968, 3976, 3985, 3993, 4000,
#!/usr/bin/python from ABElectronics_ADCDACPi import ADCDACPi import time # ================================================ # ABElectronics ADCDAC Pi 2-Channel ADC, 2-Channel DAC | DAC Write Demo # Version 1.0 Created 17/05/2014 # # run with: python demo-dacwrite.py # ================================================ # this demo will generate a 1.5V p-p square wave at 1Hz adcdac = ADCDACPi() while True: adcdac.setDACvoltage(1, 1.5) # set the voltage on channel 1 to 1.5V time.sleep(0.5) # wait 0.5 seconds adcdac.setDACvoltage(1, 0) # set the voltage on channel 1 to 0V time.sleep(0.5) # wait 0.5 seconds